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1 /***************************************************************************
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2 * Copyright (C) 2005 by 510 Software Group *
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3 * *
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4 * *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License as published by *
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7 * the Free Software Foundation; either version 2 of the License, or *
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8 * (at your option) any later version. *
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9 * *
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10 * This program is distributed in the hope that it will be useful, *
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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13 * GNU General Public License for more details. *
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14 * *
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15 * You should have received a copy of the GNU General Public License *
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16 * along with this program; if not, write to the *
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17 * Free Software Foundation, Inc., *
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18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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19 ***************************************************************************/
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20
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21 #ifndef tokenizer_include
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22 #define tokenizer_include
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23
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24 #include <fstream>
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25 #include <list>
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26 #include <set>
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27 #include <stdio.h>
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28 #include <ctype.h>
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29
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30
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31 using namespace std;
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32
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33 struct ltstr {
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34 bool operator()(char* s1, char* s2) const {
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35 return strcmp(s1, s2) < 0;
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36 }
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37 };
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38
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39 typedef list<ifstream *> stream_list;
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40 typedef list<char *> string_list;
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41 typedef set<char *, ltstr> string_set;
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42 typedef list<int> line_list;
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43
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44 class TOKEN {
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45 stream_list streams;
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46 string_list filenames;
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47 string_set filenamess;
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48 line_list linenumbers;
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49 string_list pending_tokens;
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50 string_set *include_files;
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51 bool pushed;
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52 u_char pushed_char;
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53
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54 void pop();
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55 bool next_char(u_char &c);
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56 void push_char(u_char c);
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57
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58 public:
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59 TOKEN(char *fn, string_set *includes);
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60 ~TOKEN();
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61 bool include(char *fn);
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62 char *next(); // return next token
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63 int nextint();
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64 void skipeol(); // skip to eol
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65 void push(char *token) {pending_tokens.push_front(token);};
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66 char *cur_fn() {return filenames.front();};
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67 int cur_line() {return linenumbers.front();};
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68 void token_error(const char *err);
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69 void token_error(const char *fmt, int d, const char *s);
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70 void token_error(const char *fmt, const char *t, const char *h);
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71 void token_error(const char *want, const char *have);
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72 void token_error();
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73 };
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74
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75 #endif
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